#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main(void) {
	FILE * fp;
	long int n;
	fp= fopen("wj.txt", "rb");
	fseek(fp, 0, SEEK_END);
	n= ftell(fp);
	fclose(fp);
	printf("%ld", n);
}